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Can a cool roof save lives? mexico trial aims to find out

NCT ID NCT06834893

Disease control Sponsor: Aditi Bunker Source: ClinicalTrials.gov ↗

What the study statuses mean

This study's is highlighted.

Recruitment status, easiest to join first

Recruiting now
This trial is taking on new participants right now.
Not yet recruiting This study
Registered, but not yet taking participants.
By invitation only
Not open to general applications. Only people the study team invites can take part.
Paused
Paused for now. It may or may not start again.
Ongoing
Running, but no longer taking on new participants.
Completed
The trial has finished. Results may not be published yet.
Stopped early
Stopped early, before it reached the end. That can be for many reasons, including safety.
Cancelled
Cancelled before anyone took part.

Expanded access (not trials)

Expanded access
Not a trial. This treatment can be requested outside a study, case by case, for people who qualify.
Expanded access (paused)
Not a trial. The treatment can normally be requested outside a study, but is unavailable right now.
Expanded access (ended)
Not a trial. The treatment could once be requested outside a study, but no longer can.
Approved
The treatment has been approved, so it is available normally rather than through this programme.

When the status isn't known

Details not published
The full record has not been published yet, so there is little to show here.
Status unknown
This status has not been confirmed recently, so it may be out of date.

First seen Jun 26, 2026 · Last updated Jun 27, 2026 · Updated 1 time

Summary

This study will test whether applying a special heat-reflecting coating to roofs can improve the health and well-being of 800 households in Colima, Mexico. The coating is designed to keep homes cooler indoors, which may help lower heart rate, improve blood sugar control, reduce depression, and prevent heat-related illnesses. Researchers will also measure effects on indoor temperature, energy costs, and quality of life.

What this could mean

Our plain-language read of the trial. This is informational only, not medical advice or a prediction.

Active substance
cool roof coating
What this could lead to
If it works, this could show that a simple, low-cost roof coating can reduce heat-related health problems and improve well-being in hot climates.
What could go wrong
This is a relatively early-stage trial with 800 participants, and results may not apply to other regions or populations. The intervention only addresses indoor heat, not other causes of the health conditions measured.

This is an AI summary of the original study and may miss details. Read our disclaimer.

Study facts

What this study's own registry entry says, in plain language.

Phase

Not a phased trial

Phase numbers describe drug development. The registry uses this when they do not apply, as it does for trials of devices, procedures or behaviour changes, and for observational studies.

Participants

About 800 people

The number the study aims to enrol. It can still change while the study runs.

Expected to start

Apr 2026

An estimate. Start dates often move.

Expected to finish

Sep 2027

An estimate. End dates often move.

Lead sponsor

Other sponsor

The registry's catch-all category, for sponsors it does not file as a company, a government agency, or a research network.

Who can take part

This study's own entry requirements. Only the study team can say for certain whether you qualify.

Ages

18 years and older

Sex

Anyone

Healthy volunteers

Accepted

You do not need to have the condition being studied to take part.

Show the full entry requirements

Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.

Inclusion Criteria: * Permanent household resident. Exclusion Criteria: * Roof damage, inaccessible or instability of roof adversely affecting cool roof coating application. * Participant unable to provide written/verbal informed consent.

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Conditions

The condition(s) this trial relates to.

Aggression cognitive disorder Dehydration Depression depressive disorder diabetes mellitus Heat Stress Disorders insomnia miliaria Personal Satisfaction Psychological Well-Being

As listed by the trial registrant

The condition terms exactly as the trial's registrant entered them.

Aggression Blood glucose control Cognition Coping ability Dehydration Depression Diastolic blood pressure Diet quality Food insecurity Health related quality of life Healthcare provider utilization Heat-related symptoms Hospitalization Household energy expenditure Indoor air temperature Indoor heat index Indoor relative humidity Indoor thermal comfort Inner ear canal temperature Life satisfaction Physician diagnosed heat-related illnesses Productivity Resting heart rate Sleep quality Systolic blood pressure

How to take part

Only the study team decides who joins. These are the ways to reach them.

  1. The places running it

    1 site. The list below names each one and where it is.

  2. The official record

    ClinicalTrials.gov lists the study team's own contact details, including names and phone numbers. We don't republish those.

    Open the record ↗

  3. A doctor treating you

    A doctor who knows your case can contact a study site on your behalf, and can tell you whether this study is worth pursuing at all.

Contacts and locations

Locations

  • Universidad de Colima

    Colima, Mexico

More trials for these conditions

Other studies related to the condition(s) this trial covers.